Obama Unveils New Fuel Standards For Heavy-Duty Vehicleshttp://www.lexisnexis.com/legalnewsroom/climate-change/b/newsheadlines/archive/2014/02/18/obama-unveils-new-fuel-standards-for-heavy-duty-vehicles.aspxPresident Barack Obama on Tuesday directed federal environmental and transportation regulators to develop and issue the next phase of fuel efficiency and greenhouse gas standards for trucks and other medium and heavy-duty vehicles and have them finalizeden-US6.x Production